1. Exo-planets

2. Size Most Exo-planets are smaller than earth
A common Exo-planet is around one-twelfth the size of earth (1,250-1,800 km in diameter)
This is also about half
the size of Pluto
Sedna
1,300-1,600 km in diameter
Quaoar
1,250 km
Pluto
2,302 km
Moon
3,476 km
Earth
12,756 km

3. Colors and Surface Features
Exo-planets all have wide ranges of colors and surface features
Sedna, a well known planet, is
trans-Neptune and composed
of many different elements
It is one of the reddest planets
Quaoar, another planet is a rocky
trans-Neptune planet that is
moderately red

4. Rotation and Revolution
Again, Exo-planet revolutions and rotations vary
Sedna a common exo-planet rotation is 10 hours, and its revolution is
around 11,400 years
The orbit of Sedna (red) set against the orbits of Jupiter (orange), Saturn (yellow), Uranus (green), Neptune (blue), and Pluto (purple)

5. Density Exo-planets vary in density
Two common Planets, Sedna and Quaoar have densities that are very similar
Sedna has a density of about 2.0 g/cm3 Quaoar has a density of 2.2 g/cm3
This is about ½ the
density of Earth

6. Gravity Exo- Planets have ranges of gravity
Sedna’s gravitational pull is about 0.27 m/s2
Quaoar’s gravitational pull is around 0.376m/s 2
Earth’s gravity is 9.78 m/s²
In relation, you would practically fly on Sedna and Quaoar, since there
pull is 1/10 that of Earth’s

7. Atmospheric Composition
Atmospheres on exo-planets can vary often
Sedna, a common exo-planet does not have an atmosphere, but might contain one someday
Quaoar, another example, also does not contain a known atmosphere
Both may one day posses an atmosphere due to elements present
Interpretation of the view of the sun form Sedna

8. Interpretation of Quaoar’s surface
Surface Composition
Most exo-planets surfaces are rocky and terrestrial
Due to limits on space technology there are limits on what we know about the surface composition of exo-planets
Interpretation of Quaoar’s surface

9. Interior Composition
A majority of exo-planet interior’s are composed of ice-like materials, and a solid, rocky core
Quaoar’s Interior

10. Magnetic Field
Again, detecting the magnetic fields of exo- planets around us is highly complicated
So far no magnetic fields have successfully been proven as detecting them is very complex
All exo-planets are
thought to have a
magnetic field

11. Weywot, Quaror’s moon, is theorized to appear like so
Moons
Variation in the amounts of moons is common in exo-planets
Sedna, for example, has no known moons
Quaoar, has one moon, called Weywot, its revolution is around 12.9 days and has an equatorial diameter of about 85 km
Weywot, Quaror’s moon, is theorized to appear like so

12. Unique Features of Exo-planets
Exo- means outside
There are over 200 known exo-planets
Exoplanet: a planet that orbits the sun outside Pluto or another star
Exo-planet 51 Pegasi B, one of the first discovered exo-planets

13. Exoplanets
Size: Usually smaller than Earth Sedna: 1,300-1,600 km Quaoar: 1,250 km
Color/Surface Features: wide range……commonly red
Rotation: Sedna: 10hours Revolution: Sedna: 11,400 years
Density: about ½ of earth’s density
Gravity: most are 1/10 that of earth
Atmospheric Composition: Little to no atmosphere
Surface Composition: Rocky terrestrial surface, probably icy
Interior Composition: Unverified, probably icy mantle, rocky solid core
Magnetic Field: all exo-planets thought to have a magnetic field
Moons: None to many Sedna: None Quaoar: 1/Weywot/85km diameter
Unique Features: over 200 known exo-planets